How many hydrogen atoms are in 5 molecules of isopropyl alcohol, #C_3H_7O#?

1 Answer
Nov 26, 2016

#40#

Explanation:

First, the correct chemical formula of isopropyl alcohol is #C_3H_7OH# and not #C_3H_7O#.
That being said, #C_3H_7OH# represents one molecule of isopropyl alcohol, which has #8# Hydrogen atoms.
So, the number of Hydrogen atoms in 5 molecules of #C_3H_7OH# will be #8 xx 5 = 40#.